Whitespaces in XML during message mapping not preserved

I use a twostep mapping process during Interface Mapping. The first one is the standard message mapping and the second one is a Java mapping. However, during the second step, the white spaces that should be preserved from the output of the first mapping is not there anymore. I created the XSD and specified in the details that the white spaces should be preserved.

I need the whitespaces since the output of the second mapping would be used for file content conversion in a file adapter to create the output:

MSGTYP CONTROLNOMSGID VALUE1VALUE2 VALUEn.....

Is there any way to preserve the white spaces?

Thanks!

Best Regards,

Rommel Mendoza